diff options
| -rw-r--r-- | arch/powerpc/Kconfig | 27 | ||||
| -rw-r--r-- | arch/powerpc/kernel/kgdb.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/kernel/kprobes.c | 4 | ||||
| -rw-r--r-- | arch/powerpc/kernel/process.c | 10 | ||||
| -rw-r--r-- | arch/powerpc/kernel/ptrace.c | 18 | ||||
| -rw-r--r-- | arch/powerpc/kernel/signal.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/kernel/signal_32.c | 8 | ||||
| -rw-r--r-- | arch/powerpc/kernel/traps.c | 6 |
8 files changed, 50 insertions, 27 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index bf15e7b4cd3..654bba5cf6b 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -240,6 +240,33 @@ config PPC_OF_PLATFORM_PCI config ARCH_SUPPORTS_DEBUG_PAGEALLOC def_bool y +config PPC_ADV_DEBUG_REGS + bool + depends on 40x || BOOKE + default y + +config PPC_ADV_DEBUG_IACS + int + depends on PPC_ADV_DEBUG_REGS + default 4 if 44x + default 2 + +config PPC_ADV_DEBUG_DACS + int + depends on PPC_ADV_DEBUG_REGS + default 2 + +config PPC_ADV_DEBUG_DVCS + int + depends on PPC_ADV_DEBUG_REGS + default 2 if 44x + default 0 + +config PPC_ADV_DEBUG_DAC_RANGE + bool + depends on PPC_ADV_DEBUG_REGS && 44x + default y + source "init/Kconfig" source "kernel/Kconfig.freezer" diff --git a/arch/powerpc/kernel/kgdb.c b/arch/powerpc/kernel/kgdb.c index b6bd1eaa1c2..41bada0298c 100644 --- a/arch/powerpc/kernel/kgdb.c +++ b/arch/powerpc/kernel/kgdb.c @@ -333,7 +333,7 @@ int kgdb_arch_handle_exception(int vector, int signo, int err_code, atomic_set(&kgdb_cpu_doing_single_step, -1); /* set the trace bit if we're stepping */ if (remcom_in_buffer[0] == 's') { -#if defined(CONFIG_40x) || defined(CONFIG_BOOKE) +#ifdef CONFIG_PPC_ADV_DEBUG_REGS mtspr(SPRN_DBCR0, mfspr(SPRN_DBCR0) | DBCR0_IC | DBCR0_IDM); linux_regs->msr |= MSR_DE; diff --git a/arch/powerpc/kernel/kprobes.c b/arch/powerpc/kernel/kprobes.c index c9329786073..3fd1af90211 100644 --- a/arch/powerpc/kernel/kprobes.c +++ b/arch/powerpc/kernel/kprobes.c @@ -36,7 +36,7 @@ #include <asm/uaccess.h> #include <asm/system.h> -#ifdef CONFIG_BOOKE +#ifdef CONFIG_PPC_ADV_DEBUG_REGS #define MSR_SINGLESTEP (MSR_DE) #else #define MSR_SINGLESTEP (MSR_SE) @@ -110,7 +110,7 @@ static void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs) * like Decrementer or External Interrupt */ regs->msr &= ~MSR_EE; regs->msr |= MSR_SINGLESTEP; -#ifdef CONFIG_BOOKE +#ifdef CONFIG_PPC_ADV_DEBUG_REGS regs->msr &= ~MSR_CE; mtspr(SPRN_DBCR0, mfspr(SPRN_DBCR0) | DBCR0_IC | DBCR0_IDM); #endif diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index 7b816daf3eb..9be77e3936f 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -258,7 +258,7 @@ void do_dabr(struct pt_regs *regs, unsigned long address, return; /* Clear the DAC and struct entries. One shot trigger */ -#if defined(CONFIG_BOOKE) +#ifdef CONFIG_PPC_ADV_DEBUG_REGS mtspr(SPRN_DBCR0, mfspr(SPRN_DBCR0) & ~(DBSR_DAC1R | DBSR_DAC1W | DBCR0_IDM)); #endif @@ -284,7 +284,7 @@ int set_dabr(unsigned long dabr) return ppc_md.set_dabr(dabr); /* XXX should we have a CPU_FTR_HAS_DABR ? */ -#if defined(CONFIG_BOOKE) +#ifdef CONFIG_PPC_ADV_DEBUG_REGS mtspr(SPRN_DAC1, dabr); #elif defined(CONFIG_PPC_BOOK3S) mtspr(SPRN_DABR, dabr); @@ -371,7 +371,7 @@ struct task_struct *__switch_to(struct task_struct *prev, #endif /* CONFIG_SMP */ -#if defined(CONFIG_BOOKE) +#ifdef CONFIG_PPC_ADV_DEBUG_REGS /* If new thread DAC (HW breakpoint) is the same then leave it */ if (new->thread.dabr) set_dabr(new->thread.dabr); @@ -514,7 +514,7 @@ void show_regs(struct pt_regs * regs) printk(" CR: %08lx XER: %08lx\n", regs->ccr, regs->xer); trap = TRAP(regs); if (trap == 0x300 || trap == 0x600) -#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE) +#ifdef CONFIG_PPC_ADV_DEBUG_REGS printk("DEAR: "REG", ESR: "REG"\n", regs->dar, regs->dsisr); #else printk("DAR: "REG", DSISR: "REG"\n", regs->dar, regs->dsisr); @@ -560,7 +560,7 @@ void flush_thread(void) current->thread.dabr = 0; set_dabr(0); -#if defined(CONFIG_BOOKE) +#ifdef CONFIG_PPC_ADV_DEBUG_REGS current->thread.dbcr0 &= ~(DBSR_DAC1R | DBSR_DAC1W); #endif } diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c index ef149880c14..292c8143201 100644 --- a/arch/powerpc/kernel/ptrace.c +++ b/arch/powerpc/kernel/ptrace.c @@ -46,7 +46,7 @@ /* * Set of msr bits that gdb can change on behalf of a process. */ -#if defined(CONFIG_40x) || defined(CONFIG_BOOKE) +#ifdef CONFIG_PPC_ADV_DEBUG_REGS #define MSR_DEBUGCHANGE 0 #else #define MSR_DEBUGCHANGE (MSR_SE | MSR_BE) @@ -703,7 +703,7 @@ void user_enable_single_step(struct task_struct *task) struct pt_regs *regs = task->thread.regs; if (regs != NULL) { -#if defined(CONFIG_40x) || defined(CONFIG_BOOKE) +#ifdef CONFIG_PPC_ADV_DEBUG_REGS task->thread.dbcr0 &= ~DBCR0_BT; task->thread.dbcr0 |= DBCR0_IDM | DBCR0_IC; regs->msr |= MSR_DE; @@ -720,7 +720,7 @@ void user_enable_block_step(struct task_struct *task) struct pt_regs *regs = task->thread.regs; if (regs != NULL) { -#if defined(CONFIG_40x) || defined(CONFIG_BOOKE) +#ifdef CONFIG_PPC_ADV_DEBUG_REGS task->thread.dbcr0 &= ~DBCR0_IC; task->thread.dbcr0 = DBCR0_IDM | DBCR0_BT; regs->msr |= MSR_DE; @@ -737,7 +737,7 @@ void user_disable_single_step(struct task_struct *task) struct pt_regs *regs = task->thread.regs; if (regs != NULL) { -#if defined(CONFIG_BOOKE) +#ifdef CONFIG_PPC_ADV_DEBUG_REGS /* If DAC don't clear DBCRO_IDM or MSR_DE */ if (task->thread.dabr) task->thread.dbcr0 &= ~(DBCR0_IC | DBCR0_BT); @@ -745,9 +745,6 @@ void user_disable_single_step(struct task_struct *task) task->thread.dbcr0 &= ~(DBCR0_IC | DBCR0_BT | DBCR0_IDM); regs->msr &= ~MSR_DE; } -#elif defined(CONFIG_40x) - task->thread.dbcr0 &= ~(DBCR0_IC | DBCR0_BT | DBCR0_IDM); - regs->msr &= ~MSR_DE; #else regs->msr &= ~(MSR_SE | MSR_BE); #endif @@ -769,7 +766,7 @@ int ptrace_set_debugreg(struct task_struct *task, unsigned long addr, if ((data & ~0x7UL) >= TASK_SIZE) return -EIO; -#ifndef CONFIG_BOOKE +#ifndef CONFIG_PPC_ADV_DEBUG_REGS /* For processors using DABR (i.e. 970), the bottom 3 bits are flags. * It was assumed, on previous implementations, that 3 bits were @@ -790,8 +787,7 @@ int ptrace_set_debugreg(struct task_struct *task, unsigned long addr, /* Move contents to the DABR register */ task->thread.dabr = data; -#endif -#if defined(CONFIG_BOOKE) +#else /* CONFIG_PPC_ADV_DEBUG_REGS */ /* As described above, it was assumed 3 bits were passed with the data * address, but we will assume only the mode bits will be passed @@ -824,7 +820,7 @@ int ptrace_set_debugreg(struct task_struct *task, unsigned long addr, task->thread.dbcr0 |= DBSR_DAC1W; task->thread.regs->msr |= MSR_DE; -#endif +#endif /* CONFIG_PPC_ADV_DEBUG_REGS */ return 0; } diff --git a/arch/powerpc/kernel/signal.c b/arch/powerpc/kernel/signal.c index 00b5078da9a..ad7044b5a2c 100644 --- a/arch/powerpc/kernel/signal.c +++ b/arch/powerpc/kernel/signal.c @@ -147,7 +147,7 @@ static int do_signal_pending(sigset_t *oldset, struct pt_regs *regs) */ if (current->thread.dabr) { set_dabr(current->thread.dabr); -#if defined(CONFIG_BOOKE) +#ifdef CONFIG_PPC_ADV_DEBUG_REGS mtspr(SPRN_DBCR0, current->thread.dbcr0); #endif } diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c index d670429a160..e4883ae3627 100644 --- a/arch/powerpc/kernel/signal_32.c +++ b/arch/powerpc/kernel/signal_32.c @@ -1078,7 +1078,7 @@ int sys_debug_setcontext(struct ucontext __user *ctx, int i; unsigned char tmp; unsigned long new_msr = regs->msr; -#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE) +#ifdef CONFIG_PPC_ADV_DEBUG_REGS unsigned long new_dbcr0 = current->thread.dbcr0; #endif @@ -1087,7 +1087,7 @@ int sys_debug_setcontext(struct ucontext __user *ctx, return -EFAULT; switch (op.dbg_type) { case SIG_DBG_SINGLE_STEPPING: -#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE) +#ifdef CONFIG_PPC_ADV_DEBUG_REGS if (op.dbg_value) { new_msr |= MSR_DE; new_dbcr0 |= (DBCR0_IDM | DBCR0_IC); @@ -1103,7 +1103,7 @@ int sys_debug_setcontext(struct ucontext __user *ctx, #endif break; case SIG_DBG_BRANCH_TRACING: -#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE) +#ifdef CONFIG_PPC_ADV_DEBUG_REGS return -EINVAL; #else if (op.dbg_value) @@ -1124,7 +1124,7 @@ int sys_debug_setcontext(struct ucontext __user *ctx, failure is a problem, anyway, and it's very unlikely unless the user is really doing something wrong. */ regs->msr = new_msr; -#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE) +#ifdef CONFIG_PPC_ADV_DEBUG_REGS current->thread.dbcr0 = new_dbcr0; #endif diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index 895da29e7db..4e293b75f95 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -299,7 +299,7 @@ static inline int check_io_access(struct pt_regs *regs) return 0; } -#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE) +#ifdef CONFIG_PPC_ADV_DEBUG_REGS /* On 4xx, the reason for the machine check or program exception is in the ESR. */ #define get_reason(regs) ((regs)->dsisr) @@ -1033,7 +1033,7 @@ void SoftwareEmulation(struct pt_regs *regs) } #endif /* CONFIG_8xx */ -#if defined(CONFIG_40x) || defined(CONFIG_BOOKE) +#ifdef CONFIG_PPC_ADV_DEBUG_REGS void __kprobes DebugException(struct pt_regs *regs, unsigned long debug_status) { @@ -1102,7 +1102,7 @@ void __kprobes DebugException(struct pt_regs *regs, unsigned long debug_status) do_dabr(regs, mfspr(SPRN_DAC1), debug_status); } } -#endif /* CONFIG_4xx || CONFIG_BOOKE */ +#endif /* CONFIG_PPC_ADV_DEBUG_REGS */ #if !defined(CONFIG_TAU_INT) void TAUException(struct pt_regs *regs) |